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KR-20260066879-A - Milk carton with improved milk discharge efficiency

KR20260066879AKR 20260066879 AKR20260066879 AKR 20260066879AKR-20260066879-A

Abstract

The present invention relates to a milk carton with improved milk discharge efficiency, and aims to provide a milk carton that allows all milk to flow out without tilting the carton significantly. The milk carton with improved milk discharge efficiency according to the present invention is a milk carton in which two inclined surfaces meet at the top of a rectangular prism to form a discharge opening, wherein a central fold line is formed passing through the center point of the upper corner of the front of the rectangular prism, with the central vertex of the triangular surface constituting the discharge opening as one endpoint, a diagonal fold line is formed connecting the other endpoint opposite to the one endpoint of the central fold line with the two lower vertices of the front, and an auxiliary fold line is formed connecting the side of the rectangular prism while being perpendicular to the side edge of the front.

Inventors

  • 이찬식
  • 장민준

Assignees

  • 이찬식
  • 장민준

Dates

Publication Date
20260512
Application Date
20241105

Claims (7)

  1. In a milk carton in which two inclined surfaces meet at the top of a rectangular prism to form a discharge opening, A central fold line is formed with the central vertex of the triangular face constituting the discharge port as one endpoint and passing through the center point of the upper corner of the front surface of the rectangular prism, and A diagonal fold line is formed connecting the other endpoint opposite to one endpoint of the central fold line and the two bottom vertices of the front surface of the rectangular prism, and A milk carton with improved milk discharge efficiency, wherein an auxiliary folding line is formed that passes through the side edge of the front surface and extends to the side of the rectangular prism.
  2. In paragraph 1, The above central fold line and diagonal fold line are folded to the outside of the milk carton, and A milk carton with improved milk discharge efficiency, characterized in that the above auxiliary folding line is folded inwardly into the milk carton.
  3. In paragraph 2, A milk carton with improved milk discharge efficiency, characterized in that when the other end point of the central fold line is located above the auxiliary fold line, the auxiliary fold line extends from any point on the diagonal fold line through the side edge of the front surface to the side of the rectangular prism.
  4. In paragraph 3, A milk carton with improved milk discharge efficiency, characterized in that the auxiliary folding line above passes vertically through the center of the side edge corner of the front surface.
  5. In paragraph 3, A milk carton with improved milk discharge efficiency, characterized in that the above central fold line has the center point of the upper corner of the above front as the other end point.
  6. In paragraph 2, In the case where the other end point of the above central fold line is located on the above auxiliary fold line and meets at one point with the top vertex of the isosceles triangle formed by the diagonal fold line, A milk carton with improved milk discharge efficiency, characterized in that the auxiliary fold line extends from the other end point of the central fold line through the side edge of the front surface of the rectangular parallelepiped to the side of the rectangular parallelepiped.
  7. In paragraph 2, When the other end point of the central fold line is located at the bottom of the auxiliary fold line, A milk carton with improved milk discharge efficiency, characterized in that the auxiliary folding line extends from a point on the central folding line, through the side edge of the front surface of the rectangular parallelepiped, to the side of the rectangular parallelepiped.

Description

Milk carton with improved milk discharge efficiency The present invention relates to a milk carton, and more specifically, to a milk carton with improved milk discharge efficiency that allows all the milk contained in the carton to flow out without having to tilt the carton significantly. Milk is a widely consumed food in daily life and is primarily distributed through paper-based cartons featuring a rectangular shape with a triangular spout at the top. The design of the carton is intended to maintain the freshness of the milk, provide convenient usability for consumers, and be suitable for storage and transportation. However, with these rectangular milk cartons, the milk inside may often not flow smoothly. In particular, if the corners of the carton or the spout lack sufficient slope, milk may pool in one corner and remain, preventing it from flowing out completely. As such, when residual milk remains in a carton, consumers often discard it without using it all, which can result in economic losses. Furthermore, disposing of cartons with leftover milk can cause contamination during the recycling process, complicating disposal procedures. In particular, since milk is a food that spoils rapidly at room temperature, it decomposes easily, generating foul odors and potentially causing additional pollution at landfills. To ensure that all milk flows out without any residue remaining in the carton, it is advisable to tilt the carton sufficiently when drinking or pouring to prevent the milk from pooling inside. However, there is a problem in that it is difficult for consumers to carefully perform this tilting every time. Therefore, research is needed on milk packaging that allows all milk to flow out without requiring excessive tilting. FIGS. 1 and FIGS. 2 are drawings showing a milk carton according to an embodiment. Figure 3 is a drawing showing the unfolded view of a milk carton according to an embodiment. FIGS. 4 to 6 are drawings showing the front of a milk carton according to an embodiment. It should be noted that in the following description, only the parts necessary for understanding the embodiments of the present invention are explained, and the description of other parts will be omitted to the extent that it does not deviate from the gist of the present invention. The terms and words used in the specification and claims described below should not be interpreted as being limited to their ordinary or dictionary meanings, but should be interpreted in a meaning and concept consistent with the technical spirit of the invention, based on the principle that the inventor can appropriately define the concept of the terms to best describe his invention. Accordingly, the embodiments described in this specification and the configurations illustrated in the drawings are merely preferred embodiments of the invention and do not represent all aspects of the technical spirit of the invention; therefore, it should be understood that various equivalents and modifications capable of replacing them may exist at the time of filing this application. Hereinafter, embodiments of the present invention will be described in more detail with reference to the attached drawings. FIGS. 1 and FIGS. 2 are drawings showing a milk carton according to an embodiment, and FIGS. 3 is a drawing showing an unfolded view of a milk carton according to an embodiment. Referring to FIGS. 1 to 3, the milk carton (100) according to the embodiment is a milk carton (100) in which two inclined surfaces (15) meet at the top of a rectangular prism to form a discharge opening (10). A central folding line (21) is formed passing through the center point of the upper corner of the front surface (11) of the rectangular prism, with the central vertex of the triangular surface (17) constituting the discharge opening (10) serving as one end point (A). A diagonal folding line (23) is formed connecting the other end point (B), opposite to the end point (A) of the central folding line (21), and the two lower vertices of the front surface (11) of the rectangular prism. An auxiliary folding line (25) is formed extending through the side edge of the front surface (11) to the side surface (13) of the rectangular prism. Preferably, the auxiliary folding line (25) may pass vertically through the side edge. Hereinafter, the composition of the milk carton (100) according to the embodiment will be described in more detail. In general milk cartons, milk tends to pool at one corner, making it difficult for all the milk to flow out, and there is the inconvenience of having to tilt the milk carton significantly to discharge all the milk. In this regard, the milk carton (100) according to the embodiment, as shown in FIG. 2, forms a central folding line (21) and a diagonal folding line (23) that fold outward and an auxiliary folding line (25) that fold inward, so that all the milk can flow out without pooling inside the milk carton (100) without tilting the milk carton (100) signific